I've got a PMG (I think) sitting in my closet... I was hoping to put together a HalfLife2 Metrocop costume for halloween... Haven't gotten very far, I'm afraid.
LOL, that's cool. I have several PMGs still. They are one of my favorite designs. And yeah, its obvious Valve fasioned the combine soldier mask after it as well. But you're right, they are extraordinarily uncomfortable for even short periods of time.